YAML Builder : A tool for visual layout development of YAML based CSS layouts
Milligram : Milligram provides a minimal setup of styles for a fast and clean starting point. Just it! Only 2kb gzipped! It's not about a UI framework. Specially ...
UIkit : A lightweight and modular front-end framework
for developing fast and powerful web interfaces.
Pure : A set of small, responsive CSS modules that you can use in every web project.
